#include <stdio.h>
#include <sys/types.h>
#include <ifaddrs.h>
#include <netinet/in.h>
#include <string.h>
#include <arpa/inet.h>

int main(int argc, const char * argv[])
{
	struct ifaddrs * ifAddrStruct = NULL;
	struct ifaddrs * ifa = NULL;
	void * tmpAddrPtr = NULL;

	getifaddrs(&ifAddrStruct);

	for (ifa = ifAddrStruct; ifa != NULL; ifa = ifa->ifa_next)
	{
		if (!ifa->ifa_addr)
		{
			continue;
		}
		if (ifa->ifa_addr->sa_family == AF_INET) // check it is IP4
		{
			// is a valid IP4 Address
			tmpAddrPtr = &((struct sockaddr_in *)ifa->ifa_addr)->sin_addr;
			char addressBuffer[INET_ADDRSTRLEN];
			inet_ntop(AF_INET, tmpAddrPtr, addressBuffer, INET_ADDRSTRLEN);
			printf("%s IP Address %s\n", ifa->ifa_name, addressBuffer);
		}
		else if (ifa->ifa_addr->sa_family == AF_INET6) // check it is IP6
		{
			// is a valid IP6 Address
			tmpAddrPtr = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr;
			char addressBuffer[INET6_ADDRSTRLEN];
			inet_ntop(AF_INET6, tmpAddrPtr, addressBuffer, INET6_ADDRSTRLEN);
			printf("%s IP Address %s\n", ifa->ifa_name, addressBuffer);
		}
	}
	if (ifAddrStruct != NULL)
	{
		freeifaddrs(ifAddrStruct);
	}

	return 0;
}